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Melexis Technologies NV MLX90380LDC-BAB-145-RE
- Part No.:
- MLX90380LDC-BAB-145-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-145-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,697
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Product details
Overview
MLX90380LDC-BAB-145-RE from Melexis is a monolithic Triaxis® contactless rotary position sensor IC delivering true 360° sine/cosine analog outputs for resolver replacement in motor control systems. It operates from 3.3V or 5V supply, supports -40°C to 150°C ambient, features 4µs output refresh rate, and is factory-programmed for NdFeB magnet, Z/Y magnetic axis, 60mT full-scale range, and high-bandwidth mode.
For engineers reviewing the MLX90380LDC-BAB-145-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 package details, magnetic axis configuration, real-time angular error specs, and validated alternative options for BLDC and PMSM field-oriented control designs.
Technical Context
The MLX90380LDC-BAB-145-RE implements Triaxis® Hall technology with orthogonal and parallel magnetic field sensing, enabling precise angular measurement using a rotating permanent magnet. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD and programmable via four application pins for sensitivity, filter bandwidth, and magnetic axis selection.
This variant uses Z/Y intrinsic magnetic axis configuration with gain-matched sensitivity for Bz and By components, supports high-bandwidth programming (tracking delay ≤12 µs), and delivers ≤1° total angular error with dynamic compensation at 25,000 rpm - optimized for end-of-shaft and through-shaft motor encoder applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - enables real-time angle tracking up to 25,000 rpm with ≤12 µs total tracking delay in high-bandwidth mode. |
| Full-Scale Magnetic Range | 60 mT - factory-programmed for NdFeB magnets, supporting robust operation under mechanical misalignment and temperature drift. |
| Operating Supply | 3.3 V or 5 V - dual-rail support allows direct interface with 3.3V MCUs or 5V legacy systems without level-shifting. |
| Temperature Range | -40°C to +150°C - qualified for under-hood automotive and industrial motor drive environments. |
| Magnetic Axis | Z/Y - configured for through-shaft applications where magnetic flux is applied along Z (axial) and Y (radial) directions. |
| Total Angular Error | ±1° with dynamic compensation - achieved via off-chip arctan(OUT2/OUT1) with offset/gain correction, excluding mechanical system error. |
| Sensitivity Temperature Coefficient | 1100 ppm/°C - matched to NdFeB magnet drift, minimizing temperature-induced angle error over full operating range. |
Pinout & Package
MLX90380LDC-BAB-145-RE is housed in an 8-pin SOIC-8 package (JEDEC MS-012AC) with exposed pad for thermal performance. Pin 2 and Pin 4 are NC and must be connected to ground for optimal EMC. VDD3V3 and VDD5V are separate supply pins; only one may be powered per application.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Supply ground reference for all internal circuitry and analog outputs. |
| 2 | NC | No connect - must be tied to ground for EMC compliance. |
| 3 | TEST | Factory test pin - externally grounded for normal operation; floating during programming. |
| 4 | NC | No connect - must be tied to ground for EMC compliance. |
| 5 | OUT2 | Analog SIN output - ratiometric to VDD, 0–100% VDD swing, ±40% VDD full scale at 60 mT. |
| 6 | VDD5V | 5 V supply input - active when 5 V operation selected; VDD3V3 must float. |
| 7 | VDD3V3 | 3.3 V supply input - active when 3.3 V operation selected; VDD5V must float. |
| 8 | OUT1 | Analog COS output - ratiometric to VDD, phase-orthogonal to OUT2 for arctan-based angle computation. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (Z) and parallel (Y) field detection enables true 3D angular resolution without external concentrators. |
| Programmable Magnetic Axis | Z/Y configuration supports through-shaft mounting with axial+radial field coupling, eliminating need for custom magnet assemblies. |
| Ratiometric Analog Outputs | OUT1/OUT2 scale linearly with VDD, removing supply voltage dependency from angle calculation in MCU ADC stage. |
| High-Speed Output Update | 4 µs per field component (8 µs full COS+SIN pair) ensures <12 µs latency in high-bandwidth mode for fast-loop FOC. |
| Factory Calibration Option | End-of-line calibration available to reduce total uncorrected angular error from ±10° to <±2° at room temperature. |
Applications
| Brushless DC Motor Control | Permanent Magnet Synchronous Motor |
|---|---|
|
Use Scenario: Real-time rotor position feedback for six-step commutation and sinusoidal current control in e-bike hub motors and power tools. IC Role / Device Role / Timing Role: Resolver-replacement angular sensor providing synchronized COS/SIN analog outputs sampled by MCU ADC at ≥250 kHz. Use Value: Enables >95% efficiency and low acoustic noise via precise field-oriented control without optical encoder cost or fragility. |
Use Scenario: High-accuracy rotor position sensing in HVAC compressors and industrial servo drives requiring <±0.5° dynamic angle error. IC Role / Device Role / Timing Role: Primary position transducer feeding closed-loop vector control algorithms with sub-microsecond timing alignment between COS/SIN updates. Use Value: Delivers ±1° total angular error with dynamic compensation, meeting IEC 60034-30-2 IE4 efficiency requirements. |
| Electric Power Steering (EPS) | Industrial Rotary Valve Positioning |
|
Use Scenario: Redundant-angle sensing in dual-die TSSOP-16 variants; this SOIC-8 variant used in primary path of steering column torque/angle modules. IC Role / Device Role / Timing Role: Safety-critical position sensor supplying fail-operational feedback to ASIL-C EPS ECUs with diagnostic coverage on output linearity and offset drift. Use Value: AEC-Q100 Grade 0 qualification and -40°C to 150°C operation ensure reliability in under-hood thermal cycling and vibration. |
Use Scenario: Absolute angular feedback for pneumatic/hydraulic rotary actuators in oil & gas flow control valves and process automation. IC Role / Device Role / Timing Role: Contactless position transducer replacing potentiometers, immune to dust, moisture, and mechanical wear in IP67-rated enclosures. Use Value: 60 mT full-scale range and Z/Y axis configuration tolerate large air gaps and magnet eccentricity common in valve stem coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute rotary position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90380LDC-BAB-140-RE | Same SOIC-8 package and Z/Y axis, but 50 mT full-scale range and medium-bandwidth mode (29.5 µs tracking delay). | Better suited for lower-speed applications (<10,000 rpm) with relaxed latency requirements and smaller NdFeB magnets. | Select when system-level SNR allows reduced magnetic range and lower bandwidth reduces EMI susceptibility. |
| MLX90380LGO-BAB-145-RE | TSSOP-16 dual-die fully redundant package, identical Z/Y axis, 60 mT range, and high-bandwidth mode - adds functional safety capability. | Required for ASIL-D systems needing hardware redundancy; occupies larger PCB area and requires dual-supply routing. | Choose for automotive EPS or industrial safety-rated drives where ISO 26262 FMEDA mandates dual-channel fault detection. |
Compared with MLX90380LDC-BAB-145-RE, the -140-RE variant trades bandwidth for lower noise and easier magnet sizing, while the LGO-BAB-145-RE adds hardware redundancy at the cost of footprint and layout complexity - neither is pin-compatible, but all share identical programming interface and signal processing chain.
Availability
MLX90380LDC-BAB-145-RE is available at Aetrix Electronics and suitable for brushless motor control, electric power steering, industrial valve positioning, and HVAC compressor applications requiring stable component supply across automotive and industrial production lifecycles.
Supply support for MLX90380LDC-BAB-145-RE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Melexis is a Belgian semiconductor company specializing in intelligent sensor solutions for automotive and industrial markets, with core expertise in magnetic sensing, infrared thermometry, and automotive ASICs.
The MLX90380 product line delivers contactless 360° absolute angular position sensing using Triaxis® Hall technology, designed specifically for high-reliability motor control, steering, and actuation systems demanding extended temperature operation and functional safety readiness.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-145-RE?
The MLX90380LDC-BAB-145-RE is factory-programmed for Z/Y magnetic axis configuration, meaning OUT1 responds to the Z-axis (axial) magnetic field component and OUT2 to the Y-axis (radial) component. This supports through-shaft mounting with two-pole magnets and enables robust operation under mechanical misalignment. The option code "BAB-145" confirms NdFeB magnet compatibility and high-bandwidth mode.
Does MLX90380LDC-BAB-145-RE support both 3.3V and 5V supply simultaneously?
No, MLX90380LDC-BAB-145-RE does not support simultaneous 3.3V and 5V supply. Pins 6 (VDD5V) and 7 (VDD3V3) are separate supply inputs; only one must be powered while the other floats. For 3.3V operation, apply 3.135–3.6V to VDD3V3 and leave VDD5V unconnected. For 5V operation, apply 4.5–5.5V to VDD5V and leave VDD3V3 floating - per Section 13.1 of the datasheet.
What is the total angular error specification for MLX90380LDC-BAB-145-RE?
The MLX90380LDC-BAB-145-RE achieves ±1° total angular error when dynamic compensation (offset, gain, and phase correction) is applied in the host MCU's arctan(OUT2/OUT1) computation. Without correction, uncorrected error is ±10° at 25°C and ±15° across -40°C to 150°C. The 60 mT full-scale range and 1100 ppm/°C TCS minimize magnet-induced drift in NdFeB-based systems.
Can MLX90380LDC-BAB-145-RE be reprogrammed after soldering?
Yes, MLX90380LDC-BAB-145-RE supports post-soldering programming via its TEST pin and supply rails using Melexis' PSF interface. Parameters including magnetic axis, sensitivity range, bandwidth, and TCS can be updated in-system using standard GPIO and voltage sequencing - no dedicated programmer required. Programming voltage threshold is 6.1–7.0 V on VDD during rising edge.
Is MLX90380LDC-BAB-145-RE qualified for automotive applications?
Yes, MLX90380LDC-BAB-145-RE is AEC-Q100 Grade 0 qualified (-40°C to +150°C), RoHS compliant, and designed for automotive powertrain and chassis systems. It meets ESD requirements per AEC-Q100-002 (2 kV HBM) and supports functional safety development per ISO 26262, with diagnostics covering output linearity, offset drift, and supply monitoring - confirmed in Melexis' official qualification reports.
MLX90380LDC-BAB-145-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- Triaxis®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- For Measuring:
- Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°
- Linear Range:
- -
- Output:
- Analog Voltage
- Output Signal:
- Cosine, Sine
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- ±1.5%
- Resistance:
- -
- Resistance Tolerance:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90380LDC-BAB-145-RE FAQ
1.How can I place an order for MLX90380LDC-BAB-145-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-145-RE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MLX90380LDC-BAB-145-RE reliable?
The price and inventory of MLX90380LDC-BAB-145-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90380LDC-BAB-145-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-145-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-145-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-145-RE?
MLX90380LDC-BAB-145-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-145-RE order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MLX90380LDC-BAB-145-RE?
For technical support, including MLX90380LDC-BAB-145-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-145-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-145-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-145-RE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MLX90380LDC-BAB-145-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-145-RE?
All MLX90380LDC-BAB-145-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-145-RE, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MLX90380LDC-BAB-145-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-145-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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